SOLUTION: I am needing some help on this for my kids homework. I am sure it is easy for some, but I was never good in math anyway. Thank you. Subtract and show all work: (-4-2x^5+9x^7-

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I am needing some help on this for my kids homework. I am sure it is easy for some, but I was never good in math anyway. Thank you. Subtract and show all work: (-4-2x^5+9x^7-      Log On


   

Question 408988: I am needing some help on this for my kids homework. I am sure it is easy for some, but I was never good in math anyway. Thank you.
Subtract and show all work:
(-4-2x^5+9x^7-8x^6)-(x^6+4x^5+4+3x^7)
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
(-4-2x^5+9x^7-8x^6)-(x^6+4x^5+4+3x^7)
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%28-4-2x%5E5%2B9x%5E7-8x%5E6%29-%28x%5E6%2B4x%5E5%2B4%2B3x%5E7%29
= -4+-+2x%5E5+%2B+9x%5E7+-+8x%5E6+-+x%5E6+-4x%5E5+-+4+-+x%5E7+
= 8x%5E7+-+9x%5E6+-+6x%5E5+-+8